[libvirt] [PATCH 3/7] openvz: pass sizeof to snprintf

[Ján Tomko]

The size argument accounts for the nul-byte to terminate
the string. Use sizeof and remove the pointless assignment.

Signed-off-by: Ján Tomko <jtomko at redhat.com>
---
 src/openvz/openvz_driver.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/openvz/openvz_driver.c b/src/openvz/openvz_driver.c
index 9bd73d85c..ebdc3890e 100644
--- a/src/openvz/openvz_driver.c
+++ b/src/openvz/openvz_driver.c
@@ -1355,8 +1355,7 @@ static int openvzDomainSetVcpusInternal(virDomainObjPtr vm,
     if (pcpus > 0 && pcpus < nvcpus)
         nvcpus = pcpus;
 
-    snprintf(str_vcpus, 31, "%d", nvcpus);
-    str_vcpus[31] = '\0';
+    snprintf(str_vcpus, sizeof(str_vcpus), "%d", nvcpus);
 
     openvzSetProgramSentinal(prog, vm->def->name);
     if (virRun(prog, NULL) < 0)
-- 
2.16.1